I created groups in Inventory so that I can monitor our network devices. I created a group for one device and then created a group rule for IP address equals 161.251.... (Ip address of the device).

When I go to Inventory and select Browse view, it gives me 2 columns. the first column shows the groups and the second column shows the list of rule parameters. I select a group and I select IP address. It tells me "None found". I ping and tracert the IP address from the server where Spiceworks is installed and the server sees the device.